diff --git a/build/templates/applications/helm-chart/kubernetes/README.tmpl b/build/templates/applications/helm-chart/kubernetes/README.tmpl
index 88bc3fa..db3797d 100644
--- a/build/templates/applications/helm-chart/kubernetes/README.tmpl
+++ b/build/templates/applications/helm-chart/kubernetes/README.tmpl
@@ -26,6 +26,7 @@ A Helm chart for Kubernetes
 | autoscaling.minReplicas | int | `1` |  |
 | autoscaling.targetCPUUtilizationPercentage | int | `80` |  |
 | fullnameOverride | string | `""` |  |
+| image.digest | string | `""` | Image digest for immutable reference (e.g., sha256:abc123...). If set, deployed as :tag@digest. |
 | image.pullPolicy | string | `"IfNotPresent"` |  |
 | image.repository | string | `"{{.Name}}"` |  |
 | image.tag | string | `""` | Overrides the image tag whose default is the chart appVersion. |
diff --git a/build/templates/applications/helm-chart/openshift/README.tmpl b/build/templates/applications/helm-chart/openshift/README.tmpl
index 476694d..6e7aa94 100644
--- a/build/templates/applications/helm-chart/openshift/README.tmpl
+++ b/build/templates/applications/helm-chart/openshift/README.tmpl
@@ -27,6 +27,7 @@ A Helm chart for Kubernetes
 | autoscaling.targetCPUUtilizationPercentage | int | `80` |  |
 | framework | string | `"{{.Framework}}"` |  |
 | fullnameOverride | string | `""` |  |
+| image.digest | string | `""` | Image digest for immutable reference (e.g., sha256:abc123...). If set, deployed as :tag@digest. |
 | image.pullPolicy | string | `"IfNotPresent"` |  |
 | image.repository | string | `"{{.Name}}"` |  |
 | image.tag | string | `""` | Overrides the image tag whose default is the chart appVersion. |